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Ibanez IACS12C Coated 80/20 Bronze 12-String Acoustic Guitar Strings — Light, .010-.047

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Ibanez  |  SKU: IACS12C

Why Choose Ibanez IACS12C Coated 80/20 Strings?

12-string acoustic guitar strings are a genuinely different product from 6-string sets, and not just because there are more of them. The string pairing system — where each of the six standard pitches is doubled by a companion string — means the gauges, construction, and tension relationships between each pair need careful consideration. On the lower four courses (D, A, E low, G), the standard string is paired with a lighter octave string. On the upper two courses (B and high E), both strings run at the same pitch in unison. Get the gauge balance wrong and the instrument sounds uneven, with some courses dominating others.

The IACS12C is Ibanez's own replacement set for their 12-string acoustic range, wound in 80/20 bronze for the characteristic bright, chiming acoustic tone that a 12-string instrument is built to produce. The coating extends the life of the wound strings against the accelerated corrosion that 12 strings of steel bring compared to a standard 6-string set — more contact surface, more heat, more sweat, faster deterioration without protection. The light gauge keeps total string tension manageable on an instrument that is already under significantly more load than a standard acoustic.

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Description

Coated 80/20 Bronze Strings Wound For 12-String Acoustics, With The Gauge Balance Your Instrument Needs — Ibanez IACS12C, Light.

The Ibanez IACS12C is a coated 80/20 bronze string set for 12-string acoustic guitar, wound in a light gauge configuration specifically designed for the paired-course layout of a 12-string instrument. The set comprises twelve strings across six courses: the top two courses (high E and B) are paired in unison, each pair using two plain steel strings of the same gauge. The lower four courses (G, D, A, low E) each pair a standard gauge string with a lighter octave string, producing the shimmering interval that gives the 12-string its characteristic sound. The G and D octave strings are plain steel; the A and low E octave strings are wound.

The 80/20 bronze alloy wrap wire — 80% copper, 20% zinc — produces the bright, bell-like acoustic tone the format is known for. A coating on each wound string slows the corrosion and tonal deterioration caused by hand contact, which matters more on a 12-string set than a 6-string one given the increased total string surface area in contact with the playing hand. The American hexagonal steel core provides consistent intonation and dimensional stability across all twelve strings.

KEY FEATURES: Ibanez IACS12C Coated 80/20 Bronze 12-String Acoustic Guitar Strings — Light, .010-.047
  • Specifically Wound For 12-String Guitar: Correct pairing, gauges, and course layout throughout.
  • 80/20 Bronze Wound, Coated: Bright chiming tone with extended string life.
  • Light Gauge: Manageable total tension for 12-string instruments.
  • American Hexagonal Steel Core: Consistent intonation and tuning stability.
  • Unison Top Two Courses: Matching gauges on high E and B pairs.
  • Octave Lower Four Courses: Plain octave on G and D; wound octave on A and low E.
  • Single Set of 12 Strings.

Specification
  • Type: Coated 80/20 Bronze Wound
  • Strings: 12 (6 courses)
  • Gauge Name: Light
  • Core: American hexagonal steel
  • Coating: Yes (wound strings)
  • Course Gauges (primary / octave or unison):
    High E: .010 / .010 (unison, plain)
    B: .014 / .014 (unison, plain)
    G: .023 / .008 (wound / plain octave)
    D: .030 / .012 (wound / plain octave)
    A: .039 / .018 (wound / wound octave)
    Low E: .047 / .027 (wound / wound octave)
Warranty
  • 1-year warranty

What's in the box?
  • Ibanez IACS12C Coated 80/20 Bronze 12-String Acoustic Guitar String Set (x1 set of 12 strings)

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